New Defender's Study Bible Notes

19 separate themselves. This “separation” apparently refers to the proliferation of sectarian divisions and cultic offshoots from the true church in the last days. These have indeed multiplied explosively in the past two generations especially. There are now literally thousands of Christian and quasi-Christian denominations, sects, cults, and movements in the world, the vast majority of which have been formed for other than Biblical reasons.

19 sensual. “Sensual” means “self-centered.” Even in evangelical circles today, there is an altogether anti-Biblical promotion of “self-image, “self-esteem,” and “self-love” as supposed panaceas. But such counselors “have not the Spirit” of God, for He exalts Christ, not self.